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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
On average, the stomach produces 2 L of hydrochloric acid per day.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.